Petset bootstrapping

2016-06-23 22:43:11 -07:00
parent 37510560b6
commit 4df7d96369
5 changed files with 442 additions and 1 deletions
@@ -0,0 +1,103 @@
+# A headless service to create DNS records
+apiVersion: v1
+kind: Service
+metadata:
+  annotations:
+    service.alpha.kubernetes.io/tolerate-unready-endpoints: "true"
+  name: nginx
+  labels:
+    app: nginx
+spec:
+  ports:
+  - port: 80
+    name: web
+  # *.nginx.default.svc.cluster.local
+  clusterIP: None
+  selector:
+    app: nginx
+---
+apiVersion: apps/v1alpha1
+kind: PetSet
+metadata:
+  name: web
+spec:
+  serviceName: "nginx"
+  replicas: 2
+  template:
+    metadata:
+      labels:
+        app: nginx
+      annotations:
+        pod.alpha.kubernetes.io/initialized: "true"
+        pod.alpha.kubernetes.io/init-containers: '[
+            {
+                "name": "peerfinder",
+                "image": "gcr.io/google_containers/peer-finder:0.1",
+                "args": [
+                    "-on-start=\"\"echo `
+                    readarray PEERS;
+                    echo $(hostname) > /usr/share/nginx/html/index.html;
+                    if [ 1 = ${#PEERS[@]} ]; then
+                        echo \"events{} http { server{ } }\";
+                    else
+                        echo \"events{} http { server{ location / { proxy_pass http://${PEERS[0]}; } } }\";
+                    fi;` > /conf/nginx.conf\"\"",
+                    "-service=nginx"
+                ],
+                "env": [
+                  {
+                      "name": "POD_NAMESPACE",
+                      "valueFrom": {
+                          "fieldRef": {
+                              "apiVersion": "v1",
+                              "fieldPath": "metadata.namespace"
+                          }
+                      }
+                   }
+                ],
+                "volumeMounts": [
+                    {
+                        "name": "www",
+                        "mountPath": "/usr/share/nginx/html"
+                    },
+                    {
+                        "name": "conf",
+                        "mountPath": "/conf"
+                    }
+                ]
+            }
+        ]'
+    spec:
+      terminationGracePeriodSeconds: 0
+      containers:
+      - name: nginx
+        image: gcr.io/google_containers/nginx-slim:0.7
+        ports:
+        - containerPort: 80
+          name: web
+        command:
+        - nginx
+        args:
+        - -g
+        - "daemon off;"
+        - -c
+        - "/conf/nginx.conf"
+        volumeMounts:
+        - name: www
+          mountPath: /usr/share/nginx/html
+        - name: conf
+          mountPath: /conf
+      volumes:
+      - name: conf
+        emptyDir: {}
+  volumeClaimTemplates:
+  - metadata:
+      name: www
+      annotations:
+        volume.alpha.kubernetes.io/storage-class: anything
+    spec:
+      accessModes: [ "ReadWriteOnce" ]
+      resources:
+        requests:
+          storage: 1Gi
+